package com.atguigu.gulimall.member.exception;

/**
 * 用户已存在自定义异常
 *
 * @author LaiSanShan
 * @date 2021-08-20
 */
public class UsernameExsitException extends RuntimeException {
    public UsernameExsitException() {
        super("用户名存在！");
    }
}
